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SURFACE-TREATED ULTRAFINE METAL POWDER, METHOD FOR PRODUCING THE SAME, CONDUCTIVE METAL PASTE OF THE SAME, AND MULTILAYER CERAMIC CAPACITOR USING SAID PASTE
SURFACE-TREATED ULTRAFINE METAL POWDER, METHOD FOR PRODUCING THE SAME, CONDUCTIVE METAL PASTE OF THE SAME, AND MULTILAYER CERAMIC CAPACITOR USING SAID PASTE
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机译:表面处理的超细金属粉末,其制备方法,相同的导电金属糊和使用所述糊的多层陶瓷电容器
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摘要
The present invention improves the oxidation resistance of an ultrafine metal powder for use in the internal electrode of a multilayer ceramic capacitance and suppresses an increase in the thickness of a metal internal electrode film resulting from the spheroidization of the molten metal under surface tension during the formation of the metal internal electrode film. The ultrafine metal powder has a sulfur-containing compound of not less than one element selected from the group consisting of Y, Zr, and La present on the surface of the particle thereof and is produced by performing an ultrafine metal powder purification step of dispersing the ultrafine metal powder,in a slurry, a surface treatment step of adding an aqueous solution containing a sulfate of not less than one element selected from the group consisting of Y, Zr, and La to the slurry to form the compound on the surface of the metal particle, a filtering step, and a drying step.
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